Self-heating soldering-iron.



' PATENTBD 00T. 30,'y 1906.

2 SIAIBETSwSVHBET 1.

R. W. M ARVBLL. SELF HEATING soLDBRING IRON.

APPLICATION FILED MAB..1'I. 1906.

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PATENTBD 0012.30, 1906. mw. MARVBLL.

' SELF HEATING SOLDBRING IRON.

APPLIOTION FILED IAB-.17. 1906.A

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f? .I f. mw my l f C ff UNITED STATES Vnor WILLIAMS MARvELL,

PATENT OFFICE.

OF BALTIMORE, MARYLAND, ASSIGNOR, BY

VDIRECT .AND MESN E ASSIGNMENTS, TO BEN N ETT-MARVELL MANU- FAOTURINGCOMPANY, A CORPORATION OF DELAWARE SELF-HEATING soLDERlNG-IRON.

Specication of Letters Patent.

Patented oet. 3o, 190e.

Application led March 17, 1906. Serial No. 306.637.

10 cul whom/tt may concern:

Be it known that I, ROY WILLIAMS MAR- vELL, a citizen of the UnitedStates, residing at Baltimore city, .State ofv Maryland, have inventedcertain new and useful Improvements in Self-Heating Soldering-Irons, ofwhich the following is a specification.

My invention relatesto an improvement in a self-heating soldering-iron,the object of which is to provide a soldering-iron with the self heatingfeatures, that, the heating stove or pot," asit is usuallytermed,used

y for the purpose of heating the ironfmaybe dispensed with, and toprovide an iron whereby the fuel usedinheating it can bemoreconveniently carried, also to providean iron of such simple constructionthat the several parts A the several parts.

may be easily and quickly disconnected, and thereby rendered so compactthat vit can be conveniently carried and easily and quickly assembledand ready for use when desired.

With the foregoing object in view my invention consists in certain novelfeatures of construction and combination of parts, which will behereinafter described,and pointed out in the claims.

In the accompanying drawings, Figure 1 is a perspective view of myinvention with the parts assembled. Figs. 2, 3, and 4 are sectionalviews cut away to show the interior of Fig. 5 is a perspective view ofthe preliminary heating-cup. Fig. 6 is a perspective view of the head ofthe iron and. vaporizing-chamber.

A is a hollow metallic handle adapted to be filled with gasolene andtermed the fuelchamber. f

1 is a hole within the thicker end of the handle through which thechamber is filled and is inwardly threaded, into which the threadednut-screw 2 is screwed. Interposed between the nut and handle is thewasher 3 to insure a .tight-closure. The smaller end of the handle isprovided with an opening 4 and is inwardly threaded at 5.

having eight flat sides 10 for the purpose of engaging ywith a wrenchin-order that the parts may be screwed tightly together and as a meansfor disconnecting them.

O is ahollow casting, being inwardly threaded at one end at 11 andeXteriorly threaded at the other end at 12, the upper part of thecastingI being of greater thickness, into which is'constructed' aneedle-valve. Through the upper thick portion is drilled a hole 13,whichis inwardly threaded at 14, into which is adapted to be screwed thevalve-stem 15, which is threaded at 16, the outer end of which isprovided with a thumb-nut 17, and the other end is pointed at 18 toengage .in the opening 19. The hole 13 isv inwardlythreaded at 20, intowhich the threaded cap-nut 21 is screwed. This cap-nut is `eXteri orlythreaded for this purpose and is drilled out to allow the valve-stem 15to pass therethrough.

Fitted around the valve-stem 15 between the cap-nut and the thumb-nut isa collar 22, adapted to be adjustably secured on the stem between thepoints named by means of the set-screw 23 for the purpose of preventingthe valve-stem from being inserted beyond a given point and the damagingthereof at the closing-points 18' and 19 Within the casting. 24 is avertical drilled hole in the small end of the casting O for the urposeof allowing the fuel to drip into t e cup D, which is adjustably securedon the cylinder of the iron by means of the collar 25 and the set-screw26 for the purpose hereinafter described.

Eis the soldering-iron head, pointed at 27, perforated at 28, providinga draft for the flame. The head E is cast hollow, having the cylinder Fcast to it. The cylinder F is slotted at 29 and T-slotted aty 30 andinwardly threaded at the open end thereof at 31.

M invention is assembled and operative as follows: The rod B is securedto the handle A by means ofthe thread end 6 ofthe rod being screwedwithin the threaded end 5 of the handle A. The threaded end 7 of the IOCthreads 31.

Prior to securing the cylinder F of the iron E to the casting C, asabove eX- plained, the collar 25 of the cup D is slipped over thecylinder F and after being assembled is adjustably secured by means ofthe set-screws 26. After the several parts are assembled and securedtogether, Vas above set forth, the cap-screw 2 is removed from thehollow handle A and the handle filled with fuel, (preferably gasolene,)the needle-valve is opened, and the gasolene allowed to drip into thecylinder F, and by means of the diagonal-drilled hole 24 the fuel willdrip from the cylinder F into the cup D, which is adjustably secureddirectly beneath the opening for this y urpose. When the cup issufficiently filled with the fuel, it is ignited in the cup, which willcause the casting C to become heated, through which the fuel is beingconveyed from the handle to the needle-valve by the wick 8 within therod, the heat causing the fuel to vaporize within the casting C, andwhen sufficiently heated it will ignite at the needlepoint and continueto vaporize within the cylinder F. By means of the cylinder F beingT-slotted at 3() a sufficient draft is provided to keep alive the flameat the needlevalve point, and by reason of the slots 29 the flame isinduced farther into the iron and for a like reason the iron isperforated at 28. The iron is then ready for use, and by means of thevalve the feeding of the fuel is controlled, which will of courseregulate the flame. Consequently the iron may be kept at the desiredheated degree necessary to perform its functions satisfactorily. Thepointed portion of the head E from the point 27 to the point 32 is castsolid for the purpose of more readily retaining the heat. The iron ismade of any suitable material, but preferably of copper or brass.

Slight changes'might be resorted to in the form and arrangement of theseveral parts described without departing from the s )irit and scope ofmy invention, and hence do not desire to limit myself to the exactconstruction as herein set forth; but,

Having described my invention, what I claim, and desire to secure byLetters Patent, 1s-

The combination of a self-heating soldering-iron, comprising a hollowmetal handle, of a casting rovided with a needle-valve therein, of aIhollow cylindrical rod with a wick therein, of an Octagon-shaped nutexteriorly cast about the center of said rod, means whereby the rod isconnected with the handle on one end and the valve-casting on the other,of a soldering pointed head, of a hollow cylinder vaporizer cast to saidhead, said cylinder being T-slotted near the outer end thereof andhorizontally slotted near the head portion for the purpose of inducingthe flame into the head portion means of securing the valve-castingwithin the end of the cylinder, of a fuel-holding cup adjustably securedon and beneath the vaporizing-chamber, by means of a collar andset-screw for the purpose of starting the vaporizing of the fuel withinthe cylinder substantially as described and for the purpose as setforth.

In testimony whereof I affix my signature in presence of two witnesses.

ROY WILLIAMS MARVELL.

Witnesses:

E. WALTON BREWINGTON, MARY M. MAGRAW.

